All questions of Digit Sum Method for Class 6 Exam
Adding up the individual digits of 38, we get 3 + 8 = 11. However, since we are looking for the digital sum, we further add the digits of 11: 1 + 1 = 2. Therefore, the correct answer is 8, which is option a.
To find the digital sum of a number, we need to add up all the digits in the number. In this case, we have the number 124.
Step 1: Break down the number into its individual digits.
The number 124 can be broken down into three digits: 1, 2, and 4.
Step 2: Add up the digits.
Now, we add up these three digits: 1 + 2 + 4 = 7.
Therefore, the digital sum of the number 124 is 7.
Explanation:
The digital sum of a number is the sum of all its digits. In this case, we have the number 124. To find the digital sum, we break down the number into its individual digits, which are 1, 2, and 4. Then, we add up these digits: 1 + 2 + 4 = 7. Therefore, the digital sum of the number 124 is 7.
The correct answer is a the option can anyone explain me
Digital sum refers to the sum of all the individual digits in a number. In this case, we need to find the digital sum of the number 339.
To find the digital sum, we will add the individual digits of the number together.
Solution:
Step 1: Break down the number into its individual digits.
The number 339 can be broken down into the digits 3, 3, and 9.
Step 2: Add the individual digits together.
3 + 3 + 9 = 15
Therefore, the digital sum of the number 339 is 15.
Hence, the correct answer is option 'A', 15.
Summary:
- The number 339 is broken down into its individual digits: 3, 3, and 9.
- The individual digits are added together: 3 + 3 + 9 = 15.
- Therefore, the digital sum of the number 339 is 15.
To solve the equation 1930 + 6196, we can simply add the two numbers together.
1930 + 6196 = 8126
Therefore, the answer to the equation is 8126.
Now, let's verify the answer using the Digital Sum method.
The Digital Sum method involves finding the sum of the digits of each number, and then adding those sums together. If the digital sum of the result matches the digital sum of the equation, then the answer is correct.
Step 1: Find the digital sum of 1930
Digital sum of 1930 = 1 + 9 + 3 + 0 = 13
Step 2: Find the digital sum of 6196
Digital sum of 6196 = 6 + 1 + 9 + 6 = 22
Step 3: Find the digital sum of the result (8126)
Digital sum of 8126 = 8 + 1 + 2 + 6 = 17
Step 4: Compare the digital sum of the result (17) with the digital sum of the equation (13 + 22 = 35)
Since the digital sum of the result (17) does not match the digital sum of the equation (35), the answer 8126 is incorrect.
Therefore, the correct answer is not any of the given options.
The sum of the digits of 496 is 4 + 9 + 6 = 19. Therefore, the correct answer is option b.
Adding the numbers 9670 and 398, we get 10068. The digital sum of 10068 is calculated as 1 + 0 + 0 + 6 + 8 = 15. Since we need a single-digit digital sum, we add the digits of 15: 1 + 5 = 6. Therefore, the correct answer is option b) 10088.
Calculating the Sum
To solve the equation 4943 + 862, we can add the two numbers directly:
- 4943
- + 862
- --------
- 5805
Thus, 4943 + 862 = 5805.
Verification Using Digital Sum Method
The Digital Sum method involves summing the digits of the numbers repeatedly until a single digit is obtained. This can be used to verify our addition.
1. Digital Sum of 4943:
- 4 + 9 + 4 + 3 = 20
- 2 + 0 = 2
2. Digital Sum of 862:
- 8 + 6 + 2 = 16
- 1 + 6 = 7
3. Combine Digital Sums:
- Digital Sum of the result (5805):
- 5 + 8 + 0 + 5 = 18
- 1 + 8 = 9
4. Final Check:
- Digital Sum of 4943 (2) + Digital Sum of 862 (7) = 2 + 7 = 9
- Digital Sum of 5805 is also 9.
Since both sums (from the original numbers and the result) yield the same Digital Sum of 9, our calculation is verified.
Conclusion
The correct answer to the equation 4943 + 862 is indeed option b) 5805. This has been confirmed through direct calculation and the Digital Sum method.
Step 1: Solve the equation
6541 + 843 = 7384
Step 2: Verify using Digital Sum method
For 6541:
6 + 5 + 4 + 1 = 16
1 + 6 = 7
For 843:
8 + 4 + 3 = 15
1 + 5 = 6
For 7384:
7 + 3 + 8 + 4 = 22
2 + 2 = 4
Since the digital sum of the sum of the two numbers (7384) matches the sum of the digital sums of the individual numbers (7 + 6), the answer is correct.
Therefore, the correct answer is option A) 7374.
Adding the numbers 873 and 4466, we get 5339. The digital sum of 5339 is calculated as 5 + 3 + 3 + 9 = 20. Since we need a single-digit digital sum, we add the digits of 20: 2 + 0 = 2. Therefore, the correct answer is option a) 5339.